function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 1],
    ['DeVries, Thomas J.', 2],
    ['Gofas, Serge & Luque, Ángel A. & Oliver, Joan Daniel', 2],
    ['Gofas, Serge & Salas, Carmen & Rueda, José L. & Canoura, Jesús', 1],
    ['Hansen, Thomas', 2],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Neubauer, Thomas A.', 28],
    ['Souza, Leonardo Santos De & Araújo, Tarciso Almeida De', 1],
    ['Souza, Leonardo Santos De & Pimenta, Alexandre Dias', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);